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…showed last 75 words of 2223 total…people today, however, is far brighter than in the past. Some cancers are preventable, and many are curable, especially when they are detected early. Genetic, environmental, and dietary factors can play roles in cancer development. People who wish to reduce their cancer risks can reduce their exposure to environmental and dietary factors that have been linked to cancer. Among environmental factors, smoking, water and air pollution, and sun exposure are known to cause cancer (Whitney 662).